Chiranjiv Steel Centre offers a wide range of seamless carbon steel and API Certified carbon Steel Seamless Pipe in special grades. In Association with the major API 5l Line pipe manufacturers in INDIA, EUROPE, JAPAN, TAIWAN & CHINA, Chiranjiv Steel can Supply Black Steel Pipe & API 5L Material to any type of requirements anywhere in the world, We are the largest Stockist & Suppliers of API 5L Seamless Pipe & API 5L ERW pipe in INDIA, Maximum stock of Italy and Spain make API Line pipe.

We are supplying pipes for last 30 Years to almost all type of applications like high temperature, low temperature, high pressure or sour service environments for offshore or onshore applications. All supplied products are manufactured according to international standards such as API, ASTM, ANSI, ISO and DIN pipe.

What’s New?

API 5L X70 Welded Pipe can be supplied with a range of different end and surface suiting your applications needs

X70 Seamless and ERW API 5L Line Pipe for dependable transmission of oil and gas to any type of collection and distribution point. For Water Transmission Pipeline api 5l sch80 pipe is best & economical Solution.

API 5L X70 Welded Pipe Specifications

ELECTRIC-RESISTANCE WELDED PIPE (E.R.W.)

In India, as in modern installations overseas, API 5L X70 ERW Linepipe has gained increased acceptance, where API 5L X70 Seamless Pipe was once considered essential, because of its uniform quality and dimensions, and its cost advantage.

The ERW manufacturing process is described below:

At the pipe mill the strip is uncoiled, levelled and crop-sheared. It is then trimmed on both sides simultaneously to correct width and immediately fed into the forming and welding line. During the process, the strip is closely checked for surface defects.

A series of cold forming rolls changes the strip progressively into tubular form with abutting edges on top. The longitudinal edges are joined by high frequency electric resistance welding. The weld is then heat treated electrically. Special devices remove inside and outside flash from the weld to give uniform wall thickness of the pipe. The welded part is then heat-treated by post annealing to ensure adequate ductility at the weld and adjacent zone. The API 5L X70 pipe is passed through a series of cold sizing rolls to progressively reduce the diameter to accurate size. This operation also increases strength and improves surface condition.

The API 5L X70 pipe is then cut to specified length by a flying cut-off machine. After the straightening operation, ends of the API 5L X70 pipe are cropped, then squared or bevelled depending on end finish requirements. API 5L X70 pipe is then hydrostatically tested to specified pressure. Also test specimens are taken during the process to check chemical and mechanical properties. Each length of API 5L X70 pipe is inspected by the ultrasonic method on the weld and checked as to diameter, wall thickness, surfaces, end finish, camber and concentricity. The length and weight of API 5L X70 pipe is measured and recorded and protective coating is applied on the outside surface.

Steel plates are first U-shaped then O-formed by a hydraulic press. The seam is welded from inside and outside automatically by the submerged-arc process. Hydraulic expansion gives the pipe precise diameter and roundness and relieves residual stresses caused by forming and welding.

Application of API 5L X70 Welded Pipe

API 5L X70 Welded Pipe Marking, Packaging & Shipping

API 5L X70 Welded Pipe are packed in bundles, with plastic cap to protect both ends. Plywood cases used for LCL cargo. Or as per customer’s requests. Loose package, Packaged in bundles(3Ton Max) , bundled pipes with two slings at the both end for easy loading and discharging.

API 5L X70 Welded Pipe HS Code

730410 Line pipe of a kind used for oil or gas pipelines: Of iron or nonalloy steel:730420 Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: Casing:730431 Tubes, Pipes and Hollow Profiles, of Iron or Non-alloy Steel, Cold-drawn or cold-rolled (cold-reduced)730439 Other Tubes, Pipes and Hollow Profiles, of Iron or Non-alloy Steel730441 Tubes, Pipes and Hollow Profiles, of stainless steel , Cold-drawn or cold-rolled (cold reduced)730449 Other Tubes, Pipes and Hollow Profiles, of Stainless Steel, Seamless730451 Tubes, Pipes and Hollow Profiles, of Other Alloy Steel, Cold-drawn or cold-rolled (cold reduced)730459 Other Tubes, Pipes and Hollow Profiles, of Other Alloy Steel,730490 Other Tubes, Pipes and Hollow Profiles, Seamless, of Iron or Steel